diff --git a/Cargo.lock b/Cargo.lock
index db6c8be..bde719b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -193,9 +193,9 @@ checksum = "514de17de45fdb8dc022b1a7975556c53c86f9f0aa5f534b98977b171857c2c9"
 
 [[package]]
 name = "cc"
-version = "1.0.104"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74b6a57f98764a267ff415d50a25e6e166f3831a5071af4995296ea97d210490"
+checksum = "907d8581360765417f8f2e0e7d602733bbed60156b4465b7617243689ef9b83d"
 
 [[package]]
 name = "cfg-if"
@@ -225,9 +225,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.8"
+version = "4.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84b3edb18336f4df585bc9aa31dd99c036dfa5dc5e9a2939a722a188f3a8970d"
+checksum = "64acc1846d54c1fe936a78dc189c34e28d3f5afc348403f28ecf53660b9b8462"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -235,9 +235,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.8"
+version = "4.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1c09dd5ada6c6c78075d6fd0da3f90d8080651e2d6cc8eb2f1aaa4034ced708"
+checksum = "6fb8393d67ba2e7bfaf28a23458e4e2b543cc73a99595511eb207fdb8aede942"
 dependencies = [
  "anstream",
  "anstyle",
@@ -255,7 +255,7 @@ dependencies = [
  "heck 0.5.0",
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -351,7 +351,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13b588ba4ac1a99f7f2964d24b3d896ddc6bf847ee3855dbd4366f058cfcd331"
 dependencies = [
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -408,7 +408,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -609,7 +609,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -841,9 +841,9 @@ checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
 [[package]]
 name = "hyper"
-version = "0.14.29"
+version = "0.14.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f361cde2f109281a220d4307746cdfd5ee3f410da58a70377762396775634b33"
+checksum = "a152ddd61dfaec7273fe8419ab357f33aee0d914c5f4efbf0d96fa749eea5ec9"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -865,9 +865,9 @@ dependencies = [
 
 [[package]]
 name = "hyper"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4fe55fb7a772d59a5ff1dfbff4fe0258d19b89fec4b233e75d35d5d2316badc"
+checksum = "50dfd22e0e76d0f662d429a5f80fcaf3855009297eab6a0a9f8543834744ba05"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -891,7 +891,7 @@ checksum = "5ee4be2c948921a1a5320b629c4193916ed787a7f7f293fd3f7f5a6c9de74155"
 dependencies = [
  "futures-util",
  "http 1.1.0",
- "hyper 1.4.0",
+ "hyper 1.4.1",
  "hyper-util",
  "rustls",
  "rustls-pki-types",
@@ -907,7 +907,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
 dependencies = [
  "bytes",
- "hyper 0.14.29",
+ "hyper 0.14.30",
  "native-tls",
  "tokio",
  "tokio-native-tls",
@@ -921,7 +921,7 @@ checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
 dependencies = [
  "bytes",
  "http-body-util",
- "hyper 1.4.0",
+ "hyper 1.4.1",
  "hyper-util",
  "native-tls",
  "tokio",
@@ -940,7 +940,7 @@ dependencies = [
  "futures-util",
  "http 1.1.0",
  "http-body 1.0.0",
- "hyper 1.4.0",
+ "hyper 1.4.1",
  "pin-project-lite",
  "socket2",
  "tokio",
@@ -1283,7 +1283,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -1417,7 +1417,7 @@ dependencies = [
  "phf_shared 0.11.2",
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -1455,7 +1455,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -1668,7 +1668,7 @@ dependencies = [
  "h2 0.3.26",
  "http 0.2.12",
  "http-body 0.4.6",
- "hyper 0.14.29",
+ "hyper 0.14.30",
  "hyper-tls 0.5.0",
  "ipnet",
  "js-sys",
@@ -1714,7 +1714,7 @@ dependencies = [
  "http 1.1.0",
  "http-body 1.0.0",
  "http-body-util",
- "hyper 1.4.0",
+ "hyper 1.4.1",
  "hyper-rustls",
  "hyper-tls 0.6.0",
  "hyper-util",
@@ -1801,9 +1801,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.23.10"
+version = "0.23.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05cff451f60db80f490f3c182b77c35260baace73209e9cdbbe526bfe3a4d402"
+checksum = "4828ea528154ae444e5a642dbb7d5623354030dc9822b83fd9bb79683c7399d0"
 dependencies = [
  "once_cell",
  "rustls-pki-types",
@@ -1935,22 +1935,22 @@ checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
 
 [[package]]
 name = "serde"
-version = "1.0.203"
+version = "1.0.204"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7253ab4de971e72fb7be983802300c30b5a7f0c2e56fab8abfc6a214307c0094"
+checksum = "bc76f558e0cbb2a839d37354c575f1dc3fdc6546b5be373ba43d95f231bf7c12"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.203"
+version = "1.0.204"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "500cbc0ebeb6f46627f50f3f5811ccf6bf00643be300b4c3eabc0ef55dc5b5ba"
+checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -2160,9 +2160,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.68"
+version = "2.0.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "901fa70d88b9d6c98022e23b4136f9f3e54e4662c3bc1bd1d84a42a9a0f0c1e9"
+checksum = "2f0209b68b3613b093e0ec905354eccaedcfe83b8cb37cbdeae64026c3064c16"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2327,22 +2327,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.61"
+version = "1.0.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c546c80d6be4bc6a00c0f01730c08df82eaa7a7a61f11d656526506112cc1709"
+checksum = "f2675633b1499176c2dff06b0856a27976a8f9d436737b4cf4f312d4d91d8bbb"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.61"
+version = "1.0.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
+checksum = "d20468752b09f49e909e55a5d338caa8bedf615594e9d80bc4c565d30faf798c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -2378,9 +2378,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.6.1"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c55115c6fbe2d2bef26eb09ad74bde02d8255476fc0c7b515ef09fbb35742d82"
+checksum = "445e881f4f6d382d5f27c034e25eb92edd7c784ceab92a0937db7f2e9471b938"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -2432,7 +2432,7 @@ checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -2526,7 +2526,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
@@ -2612,9 +2612,9 @@ checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
 [[package]]
 name = "uuid"
-version = "1.9.1"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5de17fd2f7da591098415cff336e12965a28061ddace43b59cb3c430179c9439"
+checksum = "81dfa00651efa65069b0b6b651f4aaa31ba9e3c3ce0137aaad053604ee7e0314"
 dependencies = [
  "getrandom",
 ]
@@ -2667,7 +2667,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
  "wasm-bindgen-shared",
 ]
 
@@ -2701,7 +2701,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -2951,7 +2951,7 @@ checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.68",
+ "syn 2.0.70",
 ]
 
 [[package]]
diff --git a/src/data_backend/stuwe_parser.rs b/src/data_backend/stuwe_parser.rs
index 6ca3a83..e5a6034 100644
--- a/src/data_backend/stuwe_parser.rs
+++ b/src/data_backend/stuwe_parser.rs
@@ -3,7 +3,7 @@ use std::vec;
 
 use crate::data_backend::{escape_markdown_v2, german_date_fmt, EMOJIS};
 use crate::data_types::stuwe_data_types::{DataForMensaForDay, MealGroup, SingleMeal};
-use crate::db_operations::{get_meal_from_db, mensa_name_get_id_db, save_meal_to_db};
+use crate::db_operations::{get_jsonmeals_from_db, mensa_name_get_id_db, save_meal_to_db};
 
 use anyhow::{anyhow, Context, Result};
 use chrono::{DateTime, Datelike, Duration, Local, NaiveDate, Weekday};
@@ -102,9 +102,9 @@ pub async fn stuwe_build_meal_msg(days_forward: i64, mensa_location: u8) -> Stri
 
 async fn get_meals_from_db(requested_date: DateTime<Local>, mensa: u8) -> Vec<MealGroup> {
     let date_str = build_date_string(requested_date);
-    let json_text = get_meal_from_db(&date_str, mensa).await.unwrap();
+    let json_text = get_jsonmeals_from_db(&date_str, mensa).await.unwrap();
     if let Some(json_text) = json_text {
-        json_to_meal(&json_text).await
+        json_to_meal(&json_text).await.unwrap()
     } else {
         vec![]
     }
@@ -198,10 +198,16 @@ fn extract_mealgroup_from_htmlcontainer(meal_container: ElementRef<'_>) -> Resul
                 let text = item.inner_html();
                 // for whatever reason there might be, sometimes this element exists without any content
                 if !text.is_empty() {
-                    item.inner_html()
-                        .split('·')
-                        .map(|slice| slice.trim().to_string())
-                        .collect()
+                    let mut add_ingr_dedup: Vec<String> = vec![];
+                    let inner_html = item.inner_html();
+                    let iter = inner_html.split('·').map(|slice| slice.trim().to_string());
+                    for ingr in iter {
+                        if !add_ingr_dedup.contains(&ingr) {
+                            add_ingr_dedup.push(ingr);
+                        }
+                    }
+
+                    add_ingr_dedup
                 } else {
                     // in that case, return empty vec (otherwise it would be a vec with one empty string in it)
                     vec![]
@@ -235,11 +241,14 @@ fn extract_mealgroup_from_htmlcontainer(meal_container: ElementRef<'_>) -> Resul
             }
             Some(meal_group) => {
                 // meal group of this type already exists, add meal to it
-                meal_group.sub_meals.push(SingleMeal {
+                let add_meal = SingleMeal {
                     name: title,
                     price,
                     additional_ingredients,
-                });
+                };
+                if !meal_group.sub_meals.contains(&add_meal) {
+                    meal_group.sub_meals.push(add_meal);
+                }
             }
         }
     }
@@ -325,8 +334,8 @@ pub async fn update_cache() -> Result<Vec<u8>> {
     Ok(mensen_today_changed)
 }
 
-async fn json_to_meal(json_text: &str) -> Vec<MealGroup> {
-    serde_json::from_str(json_text).unwrap()
+async fn json_to_meal(json_text: &str) -> Result<Vec<MealGroup>> {
+    Ok(serde_json::from_str(json_text)?)
 }
 
 async fn parse_and_save_meals(day: DateTime<Local>) -> Result<Vec<u8>> {
@@ -341,7 +350,7 @@ async fn parse_and_save_meals(day: DateTime<Local>) -> Result<Vec<u8>> {
     // serialize downloaded meals
     for mensa_data_for_day in all_data_for_day {
         let downloaded_json_text = serde_json::to_string(&mensa_data_for_day.meal_groups).unwrap();
-        let db_json_text = get_meal_from_db(&date_string, mensa_data_for_day.mensa_id).await?;
+        let db_json_text = get_jsonmeals_from_db(&date_string, mensa_data_for_day.mensa_id).await?;
 
         // if downloaded meals are different from cached meals, update cache
         if db_json_text.is_none() || downloaded_json_text != db_json_text.unwrap() {
diff --git a/src/data_types/stuwe_data_types.rs b/src/data_types/stuwe_data_types.rs
index 1cbeb78..5bdf593 100644
--- a/src/data_types/stuwe_data_types.rs
+++ b/src/data_types/stuwe_data_types.rs
@@ -13,7 +13,7 @@ pub struct MealGroup {
     pub sub_meals: Vec<SingleMeal>,
 }
 
-#[derive(Serialize, Deserialize, Debug)]
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
 pub struct SingleMeal {
     pub name: String,
     pub additional_ingredients: Vec<String>,
diff --git a/src/db_operations.rs b/src/db_operations.rs
index 9bc88d0..8752ff3 100644
--- a/src/db_operations.rs
+++ b/src/db_operations.rs
@@ -178,7 +178,7 @@ pub async fn save_meal_to_db(date: &str, mensa: u8, json_text: &str) -> rusqlite
     Ok(())
 }
 
-pub async fn get_meal_from_db(date: &str, mensa: u8) -> rusqlite::Result<Option<String>> {
+pub async fn get_jsonmeals_from_db(date: &str, mensa: u8) -> rusqlite::Result<Option<String>> {
     let conn = Connection::open(DB_FILENAME.get().unwrap())?;
     let mut stmt =
         conn.prepare_cached("select json_text from meals where (mensa_id, date) = (?1, ?2)")?;