A glass cup with a bamboo lid, a silicone seal and a stainless straw is four materials, and each wants something different.
The Materials and What They Need
Glass tolerates dishwashers, and repeated cycles etch it permanently over time, producing cloudiness that is not residue.
Stainless steel is fine in a dishwasher, though salt and acid attack its passive layer, so prompt rinsing matters after either.
Silicone is dishwasher safe and holds odour, and it needs removing from its channel periodically.
Bamboo and wood must never go in a dishwasher. Heat, prolonged water and alkaline detergent together cause warping, cracking and mould.
The Working Routine
- Disassemble every component rather than washing it whole
- Bamboo and wood by hand, quickly, dried immediately
- Silicone seals removed and the channel beneath washed
- Narrow tubes cleaned with a brush, not a rinse
- Everything fully dry before reassembly
- Stored with lids off rather than sealed
Sets combining glass bodies with bamboo lids, of the kind at vitever.net, arrive as one item and need to be treated as several, which is the point most people miss.
The Gasket Channel Is Where Smells Live
The consistent culprit. A silicone seal sits in a groove, and there is a gap between the two that no dishwasher spray or sponge reaches.
Residue accumulates there over months. That is what smells and what eventually grows mould.
Peel the seal out, wash both parts, dry them completely, and refit it evenly and the right way round.
Narrow Tubes Need a Brush
A dishwasher cleans by water striking a surface, and the inside of a straw receives almost none of that spray.
A straw brush pushed through in both directions with hot soapy water is the only thing that works.
Top Rack for Plastics
The heating element is at the bottom of most machines, and plastic near it distorts.
A warped rim no longer seals, which ruins a container that is otherwise fine.
Dry Before Storing
Anything put away damp, particularly sealed, develops smells and eventually growth.
Lids stored off their bases lets both dry and lets the gasket recover from being compressed.
Oil the Wood Occasionally
Food-safe mineral oil, wiped on and left to soak in. It slows water absorption considerably.
Retire Cracked Parts
A cracked lid or a perished seal cannot be cleaned properly.
Read the Base
Symbols are on the item rather than in general.