Grow organically and reuse the soil. Amend it properly and there is no reason to heave it out each grow, or ever, actually. If you use salt based nutrients you still could reuse if you flush it out really well, 'compost' it and amend with quality nutrients.
Soil amended properly with guano will not make smoke taste bad. Most guano tea will not make smoke taste bad. There are different kinds of guano. Some may make the pot taste the best, some does.
Earth Juice makes top shelf products, Rainbow Mix Grow and Bloom are two very good products that make great soil amendments or use as a feed according to directions. It's a dry product that ships easily and is very popular (available everywhere). It contains all you need. No need for additional guano.
But bat guano is very good for plants, when used properly.