Maybe you should have cleaned it first.

Thanks so much for the tip!

Hmm what about those stories of people getting a refund or replacement for 5-10yr old Patagonia or arcteryx jackets. Damaged due to wear and tear.

Wow, I didn't know!

This is my current blade

I have the old Dyson pet version. It still sucks after almost 20 years, but it's a PITA to clean, it's heavy, and very difficult to maneuver. Just waiting for it to die, but it will probably outlive me.

I don't recommend it since they're mostly plastic and overpriced.

This guy thrifts… great tips.

I agree that a knife is superior, but maybe OP has dexterity issues with their hands.

I have hand paralysis, and I have been looking for a high quality vegetable chopper.

Half full with hydrogen peroxide and a few tablespoons of baking soda, fill with hot water, and wait. It’ll all slough off in disgusting sheets of brown. You’re welcome!

use steel sponge, put it inside and add 100ml boiling water. then close bottle and shake it like crazy. rinse and repeat

Bon Ami cleanser with a brush could work.

Coca cola

IKEA. TBH I don't think a 'bento box' is meant to contain soup or stew.

70% won’t do it. You need 90% or higher. Buy 99% online if you can find it. This will clean all bowls too like new. Just put the bowl on a ziploc, fill it with alcohol, and let it soak.

Pelican MPB35 might be a contender. But you'll probably have better success finding a solution at r/backpacks since the people there have more experience.

If you ever replace them it may be worth getting machine washable rugs. They're not bifl, but sometimes I think it's worth it to compromise on longevity in favor of cleanliness and low-cost/effort maintenance. A small, low/no pile machine washable rug is easier to find durably constructed without quick-to-fail rubber backings than larger area rugs are.

I have a thermos like this and keep it completely clean even tho I make coffee in it daily. The key is to scrub it every day. But I’ve cleaned my sisters after she let hers become far more stained than this. Just needs more scrubbing. If your hand doesn’t fit inside, shove a rough-scrubber sponge or even steel wool down in there with the handle of a scrub brush. Will take some work but it will come completely off if you’re persistent.

Probably a Misen

I use a 1+4 mix of chlorine cleaner and water. Fill to the brim and wait half an hour and you will have a shiny thermos. Usually almost no scrubbing necessary.

Powdered Brewery Wash. It is used to get gunk off of bottles so they can be reused but it works for all kinds of things.

Denture cleaning tablets. Dissolve them in water and leave overnight.

Cant find anything in th EU :(

Handful of stainless steel BB‘s, salt and Isopropyl are my go-to.

There's a huge difference. Wear and tear are not usually covered in warranties. You got lucky.

Shove some steel wool down there and mash it around with a fork.