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Weeping Bolete (Suillus granulatus) and Slippery Jack (Suillus luteus)

2011 July 31

Thanks for my precious half we have this wonderful video about very successful harvest of Weeping Bolete (Suillus granulatus) and Slippery Jack (Suillus luteus)  :)

For those who are curios to know what happened with mushrooms after we finished shooting I can say that we have found some more Suillus mushrooms which we have collected in addition to those shown in video. So, after getting them home, cleaning, sorting and cutting I’ve got enough mushrooms to marinate (will post soon about it), to cook omelette and today I plan to stuff marrow squash with weeping boletes (I’ll share my recipes on this blog), and maybe to cook soup with left mushrooms.

Here I have few more photos to show you how Weeping Bolete and Skillery Jack looks in the nature.

Weeping Bolete growing in wild

Weeping Bolete (Suillus granulatus) growing in wild

Weeping Bolete with yellow convex cap in the wild

Weeping Bolete with yellow convex cap in the wild

Slippery Jack (Suillus luteus) growing in wild

Slippery Jack (Suillus luteus) growing in wild

Slippery Jack (Suillus luteus) in the wild

Slippery Jack with brown convex cap in the wild

Both mushrooms (Weeping or Granulated Bolete and Slippery Jack or Sticky Ban) have very bright colorful convex cap which is sticky when it’s dry and slippery when it’s wet. In fact, I think that’s the only wild edible mushroom which has shining and sticky cap. It’s hard to miss it in the forest as its bright cap can be seen from far distance.

As you can see from the picture below those Suillus mushrooms have some difference – shape of the cap and steam width.

Slippery Jack or Sticky Ban (Suillus luteus)

Slippery Jack or Sticky Ban (Suillus luteus)

Weeping or Granulated Bolete (Suillus granulatus)

Weeping or Granulated Bolete (Suillus granulatus)

- Weeping Bolete has more flattish convex cap than Slippery Jack.
- Almost every Slippery Jack mushroom has a veil around stem when Weeping Bolete has it more rarely.
- The stem of Slippery Jack is thicker than steam of Weeping Bolete
- The stem of Slippery Jack has color similar to its cap when the color of Weeping Bolete stem is darker than it’s cap (usually it is dark brown).

Underneath the cap they remain to be similar – both have yellow tubes which are smaller when the mushroom is young and bigger if it’s well-developed mushroom. For eating well-developed mushrooms are good. Though for preservation it’s better to take smaller, younger mushrooms.

Suillus (well-developed) mushroom tubes underneath the cap

Suillus (well-developed) mushroom tubes underneath the cap

Suillus (young) mushrooms underneath their caps

Suillus (young) mushrooms underneath their caps

If we cut the mushroom cap in halves we see that it has light yellow flesh with a small layer of tubed surface which is darker than cap’s flesh.

Weeping Bolete or Granulated Bolete (Suillus granulatus) cap cut in pieces

Weeping Bolete or Granulated Bolete (Suillus granulatus) cap cut in halves

Cleaned, sorted, cut and prepared for cooking Weeping Bolete (Suillus granulatus) and Slippery Jack (Suillus luteus)

Cleaned, sorted, cut and prepared for cooking Weeping Bolete (Suillus granulatus) and Slippery Jack (Suillus luteus)

I hope that now you know how Suillus species look like and how to identify them.

I wish you good luck with your Weeping Bolete and Slippery Jack hunting and share with me your stories :)

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11 Responses leave one →
  1. Sandy Smith permalink
    October 26, 2011

    Do you peel off the “slippery” top of the slippery jack before cooking it? This has been suggested to me, but you do not mention it.


    • Anastasia permalink*
      October 27, 2011

      Hi Sandy,
      No, I do not peel the skin off as I do not consider it’s necessary. it does not influence the taste or mushrooms edibility (they are edible and safe with or without skin :) ). Plus, it’s very hard work to peel the skin of the cap. Considering that I bring from forest many other mushrooms I would not like to spend a lot of time for cleaning. And the Suillus mushrooms preservation does not require any peeling, therefore, I never do that. I know many people who do not peel Suillus tops :)
      P.S. I have also responded you on my Edible Wild Mushrooms facebook page.

  2. Frank B permalink
    November 28, 2011

    Do you eat your granulatus when the flesh has become as spongy as your cut in half pic shows? I prefer mine firm like a cooked egg white texture. White to yellowish flesh but the spongy ones go into my woods in hopes for a colony. I’m a newbie yet have collected over 5 lbs so far in the last week. I don’t peel the caps on the granulatus and they were great stir fried with purselane and zucchini.
    In the same 10 days I’ve only found 2 small blewits and one pear shaped puffball. The puffball was great fried in butter

    • Anastasia permalink*
      November 29, 2011

      Hi Frank, :) They were not as spongy as one might think. Though I would say the younger are mushrooms (young Suillus mushrooms would have a cap attached to the stem and about 1-2 cm in diameter) the better they taste. I was kind of sentimental to pick such young mushroom species, so I took some and left the others to grow. The mushroom cut in halves on the photo had a cap about 5 cm in diameter, so I would say it was quite developed but not old yet.
      Due to the rainy weather which we have had in July-August many Suillus species got to be full of water and very spongy. It was a pity to leave them in woods :(

  3. alan permalink
    May 15, 2013

    hi, we’ve collected a couple of buckets of slippery jacks recently and place them to the water, they’ve socked up and we’ve cleaned them and pealed the top skin of them then fried them on the fry pan , and had a diharrea next day, i guess we’ve done something wrong , or didn’t cook them well or socked them in the water so it made the spounge socked with skin’s juice . people say we’ve got wrong mushrooms but people in australia know only mushrooms from the supermarket but i know that slippy jacks can’t be mistaken with any other mushrooms because of the tube sponge and their slippry top. do you know if we have to boil them before cooking as they’ve got waterin them now? and can we freez them ?

    • Anastasia permalink*
      May 15, 2013

      Hi Alan,
      Usually Suillus species (including Slippery Jack) are fully edible without any special preparation. I myself never clean the skin from them – it’s too much hassle. Pored mushrooms (the ones that have sponge) do not require any soaking. In fact, it just makes them too watery and damages their texture. So, I don’t believe that soaking has anything to do with your symptoms. Even if you fried the mushrooms not enough it’s not going to cause any problems except of maybe not so pleasant taste and feel on tongue (it’s same as if you do not fry enough potato or fish). I don’t like eating half-cooked food whatever it is :)
      Yes, Slippery Jack can be frozen as well as dried or marinated (pickled).

      Now, the following your statement is not entirely correct:

      slippy jacks can’t be mistaken with any other mushrooms because of the tube sponge and their slippry top

      In general, there are dozens of other pored mushrooms (with tube sponge) in woods and all of them can have slippery tops if it was rainy before mushroom picking. What’s important – colors. The color of top, the color of sponge, the color of stem, the color of mushroom inside when you cut it into halves. Of course, I mean raw mushroom, not cooked. Please feel free to browse this blog to see articles on wild mushrooms I collected. I know most of wild pored mushrooms, so you may want to post photo of your mushroom on my Facebook page next time.

      Another question what were you eating pored mushrooms with. If they were Slippery Jack, it might be that some food didn’t go well along with mushrooms.

      Hope this helps.

  4. margaret Swift permalink
    June 14, 2013

    We live on the mid north coast NSW and have a Mexican Pine tree under which wonderful Saffron Milk Cap fungi grow each year and we have just enjoyed them fried with garlic for lunch! Under a different pine a dark topped Slippery Jack fungi grow (or so I believe them to be because of their very slippery/slimy tops). We eat both these types. This year under the Mexican Pine what looks very much like Slippery Jack are (for the first time) growing along with the Saffron Milk Cap. They look very much like your illustrations above, yellowish colour both on top and the sponge underneath, and when cut look the same as your photo. The stem seems a bit longer and not so thick perhaps? There is no apparent veil on the stem. There is some shine but no sticky slimy wet feel as the ones we eat from that second tree. I feel 95%v sure they are OK to eat because of their similarity but am ever cautious with mushrooms! I have photographed them (and those of previous years which we eat) but do not know how to send a photo. Is there anything very very similar to your photos which might be poisonous?

    • Anastasia permalink*
      July 4, 2013

      Hi Margaret,
      It would be nice to see your photos – try posting on my facebook page.

  5. roger vandivort permalink
    October 22, 2013

    Thanks for the comments on cleaning the slippery jack boletus…was referencing the Margaret McKinney revised book The Savory and Wild Mushroom (and tried to clean the slipperiness…no go). I live in the Lake Wenatchee area of Washington State and We are experiencing an abundance of maybe forty different species and subsets…occurs no more than two-three years apart….at the very most! Idon`t remember this much in forty years! Any info on Lake`s Boletus…apparently tasteless? them as well as one White Chanterell…Yahoo! Also, Woodland Russula…have two very purple mature ones…good eating? Finally, Have an Amanita Muscaria in front of the cabin. Read about this species in a book called ” The Magic Mushroom” forty years ago when I was 13. The above book calls it poisonous..yet for the last week and a half critters (which may include chipmonks, squirrels, and snow hares) have been consuming it! Any ideas on this? Thanks, Roger

  6. Keila permalink
    October 26, 2013

    Looks like I may have found some of these mushrooms. I have one question though. when I scrape the stem lightly with my fingernail it turns blue at first then a grey color. Is that normal for a weeping bolete? Oh and why are they called weeping, if you know.

  7. October 27, 2013

    Hi Anastasia,

    My husband & I go out every year & look for mushrooms in the forests.
    We do find Weeping Bolete`s in grass, near pine trees. I take the pine needles &
    grass off the top of caps. No other cleaning. Then dry them in dehydrator.
    This year has been bad for most of our hunting, cause of no rain!!
    No mushrooms this year in Sept………….. Finally stated getting them in October,
    then got a hard freeze….no rain, & 3 Hen of the Woods mushrooms last weekend &
    a unique find… my husband found Lion`s Mane. This weekend, 1 Hen of the Woods, a lots of
    Weeping Bolete`s , no Oysters, no Giant Puff Balls. We live in Rantoul, Illinois 61866

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