Metta towards a non-sentient entity or substance (e.g. rice)? Is there a Buddhist tradition or practice, which involves developing or showing metta towards a non-sentient entity ... for example, towards a jar of rice?

If not, why not?

Is it theoretically possible (according to Buddhist theory) that such a practice might have an effect, an effect not only on the mind of the practitioner but also on the object ... for example, might speaking kindly to a sealed jar of cooked rice cause it to rot more slowly (as suggested by Masuro Emoto's rice experiment)?



Masuro Emoto's rice experiment was to put cooked rice in three sealed jars: then say hateful words to one jar, loving words to another, and ignore the third. Allegedly the rice jar to which were said loving words does well (rots more slowly), and the ones you ignore and say bad words to will do less well (they rot or grow mouldy more quickly than the other one).

Edit :  the experiment didn't work  - i also added two slices of the same apple next to the rice  -  and even the "good" rice and apple got rotten a bit faster
Is there a Buddhist tradition or practice, which involves developing or showing metta towards a non-sentient entity ... for example, towards a jar of rice?

Not that I know of.

If not, why not?

This essay says,


  These four attitudes are said to be excellent or sublime because they are the right or ideal way of conduct towards living beings (sattesu samma patipatti). They provide, in fact, the answer to all situations arising from social contact.


Rice isn't a "living being", and one does not have "social contact" with rice.

Also I don't think that rice is capable of "suffering" (because it isn't sentient; it's inanimate), and so it's not a suitable object for "metta".

Is it theoretically possible (according to Buddhist theory) that such a practice might have an effect, an effect not only on the mind of the practitioner but also on the object

I don't think so. I think you're asking that the rice last longer before spoiling, that it be less impermanent; and I don't remember seeing doctrine which I could construe as saying that "wishing that something were less impermanent is enough make it so".

Conversely there's doctrine about doing rather than wishing: saying e.g. if you want a long life then you should do things which are conducive to long life (not just wish for it).

Perhaps being careful about preparing the rice you care for, and doing something such as cleaning the jar more carefully or sealing the jar more tightly, might show an experimental effect.