Its no good comparing food bills unless you compare lifestyles. Many people may spend £50pw on food but does that include breakfast, good healthy packed lunches, tea and weekend food. What many people dont say is that they mainly eat out a relatives or friends on the weekends. Hubby eats out for lunch etc the weekly takeaway. You cant replenish a store cupboard on £50pw either.
As for Aldi its fine for many items but you are limited and some of it isnt very good so you need to find out from previous threads whats good however, I would question if you make a massive saving.
Please dont think cos its cheap its good value - watch weights and sizes, poor quality etc. You put in you get out, crappy ingredients wouldnt produce a good outcome.
I spend £120pw minimum. No way can I cut this down as we get through lots of bread (some homemade) pints of milk, tons of cereal, coffee (cant skimp sorry) tons of veg and fruit, hi-juice squash, yoghurts, homemade cakes, tinned tuna, salmon, toms. Our evening meal is very healthy and substantial.
If you are going to cook from scratch you need to get a good store cupboard and that costs. Different flours, various pasta, coucous, noodles, rice, tins of toms, pulses, beans, soups.
Belly pork, pork shoulder, chicken thighs, lamb shoulder, lamb neck, lamb mince, beef mince, beef shin/brisket/slow roast. Value frozen white fish, pollock (fab like cod) whiting. all these are cheaper cuts - if you have a good butcher or farmers markets look for deals there.
Eggs at farmgate def not cheap eggs complete waste of time, tasteless and not great for baking. Good laying chickens produce good nutricious eggs.
As for cleaning products just buy a normal one and pop it in a spray gun with water - just as good you dont need endless products, hot water and elbow grease! Toilettaries again places like home bargins, wilkinson are great for these. Even ALdi's have a fab selection and the cheap bars of soap are good. I use the facial mosituriser which is amazing.
I'll still be surprised if you cook everyday that you can get it below £70 I could never, I think now £100 pw is acceptable especially if you want tasty food with substance, low carb, nutriants.