Sure. JAM is a UI for JoinMarket for collaborate transactions.

here is what I did:

1. Send sats to JAM (they move into a Jam pot, Apricot) - These are unmixed sats

2. Send a collaborative transaction to another Jam pot, Blueberry for example (or wait for sats to do a free mix & move sats to the blueberry pot using their earn programme) - These are mixed sats in a different pot

3. Send out sats from your mixed pot (again with another collaborative transaction to cold storage) - multiple mixed sats to cold.