Doubt......味おんち？

We have some doubt about her taste buds. Bitter spray won't stop her from chewing things, we've tried the spray on electrical cords, didn't work.  Now, we've sprayed her leash to prevent her from chewing it while walking, well, it doesn't work either, so what else?  M tried lemon juice yesterday, but Sora licked it....もしかして、味覚がないのでは？という疑問がフツフツと...嗅覚は抜群なんだけど...次は、唐辛子か、マスタードという候補があるけど...期待薄。