Alex Dombrowski

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since Apr 20, 2026
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Recent posts by Alex Dombrowski

Pearl Sutton wrote:

Judith Browning wrote:I wonder about using some of the non woven things used in clothing construction like pelon or some other interfacing fabric sold by the yard (or something similar to the vacuum cleaner bags mentioned in Anne's quote above) that might filter but not make such a humidity pocket behind the mask like a cotton fabric does?



If you make it so it doesn't sit right on the face it would help. Ever worn a proper gas mask with filters? The face part is a rubber thing that makes an airspace above the nose and mouth, the filters come in off the side. Some of them have a one way valve exhale ports. That might all be ideas to look at. I'm a recycle type, I'd probably use something like a margarine tub out of the trash that I heat shape, then add filters to the sides, and output with one way flaps and separate filters. hmm. Now you have me thinking...

Thinking on it more, if the input and output filters are separate items, you can change/wash/throw away only the ones you need to. If the mask is on a person with CV, change the output filter more, their inputs will last longer. The caregiver though would change their inputs more, their output will last longer.

This is a paint spray mask, visual of what I'm thinking of... Only homemade, and with the output filtered too...



The idea actually makes sense-you’re basically describing a separated inhalation/exhalation system with replaceable filters, similar to professional respirators.

But there’s one key issue: in real systems like that, everything depends on a proper seal and carefully engineered airflow resistance. In DIY versions, the common problems usually aren’t the concept itself, but things like:

the mask not sealing tightly enough to the face (even small leaks drastically reduce effectiveness),
one-way valves not functioning reliably or allowing backflow,
materials (like plastic containers) deforming and losing shape or airtightness with heat, moisture, and breathing pressure.

Your idea of separating intake and exhaust filters is actually used in professional-grade equipment, especially in medical and industrial respirators. However, those systems are tested and certified, because without proper validation the real-world protection level can drop significantly.

If you wanted to develop this further, the safer and more practical approach would be to start from a certified respirator facepiece and then explore modular or replaceable filter configurations around that, rather than building the entire structure from scratch.

Overall, it’s an interesting line of thinking but this is one of those areas where “almost works” can effectively mean “doesn’t protect.”
1 week ago
Ficus lyrata (fiddle-leaf fig) is gorgeous, but it can definitely be a bit dramatic compared to easier tropicals. Bright indirect light is the big key - when happy they grow fast and become stunning statement plants, but they can sulk if lighting or watering changes too much. Still, they’re absolutely worth trying if you like big architectural plants.

Also great for grow Ficus lyrata care guide:
https://botanapp.com/plant/ficus-lyrata
1 week ago
Mung bean sprouts are brilliant because they’re cheap, easy and surprisingly productive. I still remember doing the mustard and cress thing on cotton wool at school too - funny how those simple projects stick with you. Fresh homegrown sprouts taste so much better than store-bought ones, especially in stir fries and sandwiches. If you grow the mung beans in the garden as well, you can even let some mature fully and harvest your own seed for the next batch. The Asian grocery find sounds like a win — proper belacan and fresh sprouts are a great combo for nasi goreng.
1 week ago
Hi Judith, thanks for the reply and the spore print update - I went back and had a look, that definitely helps a lot and makes the wine cap ID even more convincing.

I totally get your approach, books and local mycology folks are usually way more reliable than any app or quick online tool. Google Lens can be hit or miss, especially with older or weathered specimens, so I wouldn’t rely on it alone either. Permies is actually a great mix because you get both experience and discussion instead of just an automated guess.

1 month ago
Wow, that’s awesome - both the idea and the execution. Using cedar limbs and even mini shake shingles is such a cool touch, sounds like a ton of detail went into it and it looks super amazing.
1 month ago
Those actually do look a lot like wine caps to me - especially the color, the cracking on the caps, the dark gills, and the fact they’re growing in wood-rich beds. The ring on the stem you mentioned earlier also fits. That said, they’re pretty mature and beat up, which makes ID less certain. There are a few lookalikes, so I still wouldn’t call it 100% without seeing younger specimens or doing a spore print. If they come back, try to catch them earlier - wine caps usually have a more rounded cap when young and a clearer ring. A dark purplish-brown spore print would also support that ID. If it is wine cap, you’re in luck - they spread really well in wood chips. Just add fresh chips and keep it moist, and they’ll likely establish themselves in that path over time.

In any case, I recommend always using two tools if you're unsure about something like that:
1. google lens
2. instant plant identification
1 month ago
Yeah, I save seeds most years. Storage-wise you’re on the right track so keeping them cool, dry, and dark matters more than the container itself. I usually throw in a silica packet just to keep moisture down. As for age, it really depends on the crop. Things like tomatoes, peppers, and brassicas can stay viable quite a long time (5–10 years sometimes), but onions, parsnips, and corn drop off fast. Squash and cucumbers usually hold up pretty well for several years if stored right. With 8–10 year old seeds, you’ll probably see lower germination, but some should still pop. You can always do a quick germination test indoors (paper towel method) before planting to get an idea. Honestly, I do the same thing usually as you plant them anyway and see what happens
1 month ago
Miscanthus  giganteus is definitely impressive, but yeah… it’s not quite as magical as it sounds on paper.

The yield part is real - it can put out a ton of biomass once established, and it doesn’t need heavy inputs every year. But the ‘grows on marginal land with no downsides’ angle is a bit oversold. It still needs decent moisture to really perform, especially in the first couple of years while it’s establishing.

For bedding and mulch, it’s actually a solid use. The absorbency claim isn’t totally crazy -the pithy core does help. A lot of people in Europe use it for animal bedding with good results.

Where I’d be more cautious is firebreaks - dry miscanthus is basically tinder. Green, irrigated stands might resist ignition somewhat, but once it cures out, it can carry fire pretty fast. I wouldn’t rely on it as a primary firebreak without serious management.

Also worth noting: establishment can be slow and not cheap (rhizomes), and it doesn’t spread aggressively because it’s sterile, so you’re planting everything intentionally.

For southern BC specifically  it can grow there, but performance will depend a lot on your rainfall/irrigation. In drier areas, it won’t hit those “giant biomass” expectations without water.

Overall though, as a multi-use biomass crop? Yeah, it’s legit - just not quite the miracle plant some articles make it out to be.
1 month ago
Yeah cause there actually are some good moschata options that get pretty close. ‘Long Island Cheese’ and ‘Musquée de Provence’ are probably the closest in terms of flavor and texture. Also ‘Dickinson’ types (what they use for canned pumpkin) are moschata and work great for pies. They won’t look exactly like sugar pumpkins, but the flesh is dense, sweet, and honestly often better for cooking.
1 month ago