[mdjlucan]

I've just bought these rubber models are they okay to start my beetroot off in?

[mumofstig]

Look fine to me 
Don't leave them in there too long though, they like to be planted out quite quickly.

[Snow]

Yeah they should be fine. They are quite large modules, but you can still use them. I always multisow beetroot they grow really well together. 

[coldandwindy]

I've just bought these rubber models are they okay to start my beetroot off in?

I've tried chitting my beetroot for the first time this year & the results were very good. You just put them on wet kitchen roll in a warm dark place. After about 4-5 days little roots develop. Then you sow them directly into the ground. Its a bit fiddly but you know you are definitely sowing viable ones so there wont be gaps in the row, or any need to put extra ones in or do thinning later. I sowed 2 rows side by side, one chitted & one not. The chitted are winning hands down.