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Project: What's in an Avocado Toast: A Supply Chain Analysis
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  • What's in an Avocado Toast: A Supply Chain Analysis

    You're in London, making an avocado toast, a quick-to-make dish that has soared in popularity on breakfast menus since the 2010s. A simple smashed avocado toast can be made with five ingredients: one ripe avocado, half a lemon, a big pinch of salt flakes, two slices of sourdough bread and a good drizzle of extra virgin olive oil.

    It's no small feat that most of these ingredients are readily available in grocery stores. In this project, you'll conduct a supply chain analysis of the ingredients used in an avocado toast, utilizing the Open Food Facts database. This database contains extensive, openly-sourced information on various foods, including their origins. Through this analysis, you will gain an in-depth understanding of the complex supply chain involved in producing a single dish. The data is contained in .csv files in the data/ folder provided.

    After completing this project, you'll be armed with a list of ingredients and their countries of origin, and be well-positioned to launch into other analyses that explore how long, on average, these ingredients spend at sea.

    import pandas as pd
    avocado = pd.read_csv("data/avocado.csv", sep='\t')
    avocado = avocado[['code', 'lc', 'product_name_en', 'quantity', 'serving_size', 'packaging_tags', 'brands', 'brands_tags', 'categories_tags', 'labels_tags', 'countries', 'countries_tags', 'origins','origins_tags']]
    avocado = avocado.dropna(subset=['categories_tags'])
    avocado['categories_list'] = avocado['categories_tags'].str.split(',')
    categories_tags = ['en:avocadoes', 'en:avocados', 'en:fresh-foods', 'en:fresh-vegetables', 'en:fruchte', 'en:fruits', 'en:raw-green-avocados', 'en:tropical-fruits', 'en:tropische-fruchte', 'en:vegetables-based-foods','fr:hass-avocados']
    avocado = avocado[avocado['categories_list'].apply(lambda x: any([i for i in x if i in categories_tags]))]
    avocado_UK = avocado[(avocado['countries']=='United Kingdom')]
    print('**avocado origins**:', '\n', avocado_UK ['origins_tags'].value_counts(),  '\n')
    avocado_origin = 'Peru'
    def read_and_filter_data(filepath, relevant_categories):
        df = pd.read_csv('data/' + filepath, sep='\t')
        df = df.dropna(subset=['categories_tags'])
        df['categories_list'] = df['categories_tags'].str.split(',')
        df = df[df['categories_list'].apply(lambda x: any([i for i in x if i in relevant_categories]))]
        df = df[(df['countries']=='United Kingdom')]
        print(f'**{filepath[:-4]} origins**','\n',df['origins_tags'].value_counts(), '\n')
    
    relevant_categories = ['en:aromatic-plants', 'en:citron', 'en:citrus', 'en:fresh-fruits', 'en:fresh-lemons', 'en:fruits', 'en:lemons', 'en:unwaxed-lemons']
    lemon = read_and_filter_data('lemon.csv', relevant_categories)
    lemon_origin = 'South Africa'
    with open("data/relevant_olive_oil_categories.txt", "r") as file:
        relevant_olive_oil_categories = file.read().splitlines()
    Olive_oil = read_and_filter_data('olive_oil.csv', relevant_olive_oil_categories)
    olive_oil_origin = 'Greece'
    with open("data/relevant_sourdough_categories.txt", "r") as file:
        relevant_sourdough_categories = file.read().splitlines()
    sourdough = read_and_filter_data('sourdough.csv', relevant_sourdough_categories)
    sourdough_origin = 'United Kingdom'