The relatively small portions are enough for me but for the large 0.25 - liter cup. Especially a lot of mint tea I do not drink. - Especially since you should not take my knowledge anyway due for example to the high content of essential oils in peppermint tea this tea in uncontrolled amounts to be (at least in the opinion of my family doctor!). - For the same reason, indeed a very low dose for (small) recommends children!
CONCLUSION: Good mint tea in the low-cost "family pack"!