What a fantastic idea, and it solves a problem I was wondering how to address how do I know when my starter is ready? I backed and have the Goldie Kickstarter (link below), and it is excellent at maintaining the right temperature. Now, teamed up with Breadwinner I will also know when it is ready. I know that I could use the mason jar in the Goldie, but I was also wondering if Breadwinner could sit on other jars even if not screwed down onto a Mason jar? Can't wait to receive this and best of luck! https://www.kickstarter.com/projects/sourhouse/goldie-by-sourhouse-a-warm-safe-home-for-sourdough-starter/?utm_term=&utm_campaign=&utm_source=adwords&utm_medium=ppc&hsa_acc=5596680735&hsa_cam=19587496051&hsa_grp=&hsa_ad=&hsa_src=x&hsa_tgt=&hsa_kw=&hsa_mt=&hsa_net=adwords&hsa_ver=3&gclid=Cj0KCQiAxbefBhDfARIsAL4XLRoG8DXoGx4emMDqN9a8unwdRMnERI8UwyF1cOFqGYt4b7aRtXfX_LQaAq8lEALw_wcB